160780880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4987}}^1$

素因数の和:5044

約数の個数: 80

約数和(自身を含む): 415640064

約数和(自身を除く): 254859184

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 4987, 6448, 8060, 9974, 16120, 19948, 24935, 32240, 39896, 49870, 64831, 79792, 99740, 129662, 154597, 199480, 259324, 309194, 324155, 398960, 518648, 618388, 648310, 772985, 1037296, 1236776, 1296620, 1545970, 2009761, 2473552, 2593240, 3091940, 4019522, 5186480, 6183880, 8039044, 10048805, 12367760, 16078088, 20097610, 32156176, 40195220, 80390440, 160780880]

約数ペア:

[(1, 160780880), (2, 80390440), (4, 40195220), (5, 32156176), (8, 20097610), (10, 16078088), (13, 12367760), (16, 10048805), (20, 8039044), (26, 6183880), (31, 5186480), (40, 4019522), (52, 3091940), (62, 2593240), (65, 2473552), (80, 2009761), (104, 1545970), (124, 1296620), (130, 1236776), (155, 1037296), (208, 772985), (248, 648310), (260, 618388), (310, 518648), (403, 398960), (496, 324155), (520, 309194), (620, 259324), (806, 199480), (1040, 154597), (1240, 129662), (1612, 99740), (2015, 79792), (2480, 64831), (3224, 49870), (4030, 39896), (4987, 32240), (6448, 24935), (8060, 19948), (9974, 16120)]